diff options
| author | Srinivas Kandagatla <srinivas.kandagatla@linaro.org> | 2018-07-06 18:05:27 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2018-07-11 13:58:04 +0300 |
| commit | e76ad18b56775aa20c0fb8e6203fae2aaee57e5c (patch) | |
| tree | d5f93adc97437c6a0d73e0c3b40feff074fb889a /drivers/base | |
| parent | ce397d215ccd07b8ae3f71db689aedb85d56ab40 (diff) | |
| download | linux-e76ad18b56775aa20c0fb8e6203fae2aaee57e5c.tar.xz | |
regmap: slimbus: add support to multi read/write
SLIMbus supports upto 16 bytes in value management messages,
so add support to read/writes upto 16 bytes.
This also removes redundant single register reg_read/reg_write.
Also useful for paged register access on SLIMbus interfaced codecs.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'drivers/base')
| -rw-r--r-- | drivers/base/regmap/regmap-slimbus.c | 23 |
1 files changed, 7 insertions, 16 deletions
diff --git a/drivers/base/regmap/regmap-slimbus.c b/drivers/base/regmap/regmap-slimbus.c index 91d501eda8a9..0968059f1ef5 100644 --- a/drivers/base/regmap/regmap-slimbus.c +++ b/drivers/base/regmap/regmap-slimbus.c @@ -7,33 +7,24 @@ #include "internal.h" -static int regmap_slimbus_byte_reg_read(void *context, unsigned int reg, - unsigned int *val) +static int regmap_slimbus_write(void *context, const void *data, size_t count) { struct slim_device *sdev = context; - int v; - v = slim_readb(sdev, reg); - - if (v < 0) - return v; - - *val = v; - - return 0; + return slim_write(sdev, *(u16 *)data, count - 2, (u8 *)data + 2); } -static int regmap_slimbus_byte_reg_write(void *context, unsigned int reg, - unsigned int val) +static int regmap_slimbus_read(void *context, const void *reg, size_t reg_size, + void *val, size_t val_size) { struct slim_device *sdev = context; - return slim_writeb(sdev, reg, val); + return slim_read(sdev, *(u16 *)reg, val_size, val); } static struct regmap_bus regmap_slimbus_bus = { - .reg_write = regmap_slimbus_byte_reg_write, - .reg_read = regmap_slimbus_byte_reg_read, + .write = regmap_slimbus_write, + .read = regmap_slimbus_read, .reg_format_endian_default = REGMAP_ENDIAN_LITTLE, .val_format_endian_default = REGMAP_ENDIAN_LITTLE, }; |